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What is the purpose of motorcycle engine oil?

1 Answers

LeoFitz

07/29/25 7:46pm

Motorcycle engine oil serves the following functions: 1. Lubrication and friction reduction: There is rapid relative sliding between the piston and cylinder, as well as between the main shaft and bearing shells. To prevent excessive wear of components, an oil film needs to be established between the two sliding surfaces. A sufficiently thick oil film separates the surfaces of relatively sliding components, thereby achieving the purpose of reducing wear. 2. Cooling: The engine oil can carry heat back to the oil tank and then dissipate it into the air, helping the radiator to cool the engine. 3. Cleaning: Good engine oil can carry carbon deposits, sludge, and worn metal particles from engine components back to the oil tank through circulation. The flow of the lubricating oil washes away dirt generated on the working surfaces of the components. 4. Sealing and leakage prevention: Engine oil can form a sealing ring between the piston rings and piston, reducing gas leakage and preventing external contaminants from entering. 5. Rust and corrosion prevention: Lubricating oil can adhere to the surfaces of components, preventing contact with water, air, acidic substances, and harmful gases. 6. Vibration damping and shock absorption: When the pressure at the engine cylinder port rises sharply, suddenly increasing the load on the piston, piston skirt, connecting rod, and crankshaft bearings, this load is transmitted and lubricated through the bearings, cushioning the impact load.

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Vehicle Steering Wheel Usage Tips?

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